Method of making chaplets



Jan. 30, 1923. 1,443,737

METHOD H' G INBGSPLETs.

FILED 9. 1919.

Patented Jan. 30, i923.

SAMUEL H. GIBSON, OF CLEVELAND, OHIO,KASSIGNOR T THE FANNER MANUFAC-TURING COMPANY, OF CLEVELAND, OHO, ACORPORATION OF OHIO.

METHGD- OF IVIAKING CHAPLETS.

Application filed May 9, 1919. Serial No. 295,961.

T 0 all i0 7mm it concern:

Be it known that l, SAMUEL H. GIBSON, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State. of Ohio,have invented a certain new and useful Improvement in Methods of MakingChaplets, of which the follon'ing is a full, clear, and exactdescription.

The present invention relates to a method of making chaplets,'\vhich asis very Well known, are usually formed Afrom strips or bars of metalWhich are bent to assume a variety of different shapes and forms and oneof the common forms may be described as substantially rectangular,although the chaplet may be curved.

`These chaplets frequently employ a central bridge which spaces the longsides of the chaplet and holds them against bending inwardly toward eachother. i

The purpose of this invention is to provide a method Which is applicablealike to tlie`manufacture of cliaplets by hand or by machine wherein thechaplet is formed from a strip or bar of metal by a series of operationsWhich result in formingA the chaplet with a cent-ral bridge portion.

Generally speaking, the invention maybe said to comprise the method andthe steps thereof set forth. in the accompanying claims'.

Reference should be had in the accompanying drawings forming a part ofthis specilication, in which Fig. 1 is an elevation with portions insection showing a. portion of a machine by Which the method may becarried out. Figs.' 2, 3 and 4 represent various stages of operation inthe method of producing the tinished chaplets. Fig. 5 is a perspectiveView showing a linished chaplet made by the method forming thisinvention.

One forni of chaplet produced by the method Which is about to bedescribed is shown in Fig. 5 and comprises op-positely disposed sidemembers 1 and 2 with end members 3 and t. Extending between the oppositesides 1 and 2 is a bridge portion 5 which contacts with the innerportion of the side 1 thereby forming a bridge or brace.

The chaplet which is sho-Wn in Fig. 5 isI curved b-ut it will be readilyunderstood that this is in no Way limited as illustration is onlyintended to indicate one form in which a chaplet produced by the hereindescribed method may be produced.

The chaplet may be formed from a. bar of nieta-l or from a strip ofmetal, b ut in the present instance l Will describe thev invention whenutilizing a strip. i

rllhe first step in the method of making the chaplet is to provide. alsubstantially iat strip of metal such as indicated at 17 in Fig. 1 Whichat its end is provided with a substantially right-angled extension 7.The

length of the extension 7 is of course prey this position as illustratedin 2 by means' of a mandrel 11 and while as here shown the mandrel iscooperating with certain other instrumentalities. It Will be obviousthat so far as the method is concerned any appropriate means may beemployed for bending the strip about the mandrelll'in such a manner thatthe extension 7 thereof Will enter a central slot lln of the mandrel andsubsequently bendino the portion 9 of the strip so that it Will lieabove the portion 10.

The next step in the method is to apply lsuitable pressure upon theportions 9an'd 10 of the strip so that they Will be folded closelyaround the mandrel and will lie in close .co-ntact With'the surfaces ofthe mandrel and bending the metal such that the extension 7 will iirmlycontact. with the lower portion S of the strip. I

The next operation is to strip the finished chaplet from the mandrel. f

A suitable machine for carrying into effect the herein disclosed methodis shown in my Patent No. 1,348,215, granted August 3, 1920.

A part of the machine there shown is illustrated in Fig. 1 and may bebriefly described as comprising a bed 12 having a recess in the topthereof, folding members 13 and 14 which are located above and atopposite sides of the die and form in effect portions of the die withrespect to the forming action upon platform 16 is depressible and forthis purpose is mounted upon springs 1S.

Adjacent to the platform 16 there is an upright member 19 Wh ich isprovided ivith a. s-lanting surface as indicated at 19^. {Joopera-tingwith the member 191L is a reci proc-ating member 20 which is formed withan edge as clearly shown in Fig. 1 and these men bers 19 `and 2O act asshears to sever the strip of metal 17 thereby producing an appropriatelength of strip to be operated upon by the machine.

There is located above the support 1G a reciprocating member 21 which isadapted to descend and engage n ith the strip 1"? upon the platform.

ln operation it will be seen that when the strip 17 has been severed bythe cooperaion of members 19 and Q0, the member 21 descending bends theend portion of the strip 17 against the slantingl face 19A and soproduces an approximately right angle bend at the end of the strip.

Portion of the strip 17 which has been fed to the machine pri r to theshearing' action which has just been described Was likewise providedwith a right angle bend at the end thereof and the strip when severedoccupies substantially the position shown in l? 1.

The mandrel 11 descends bending the strip into the position shown inFig. 2 then the member 13 moves inwardly thereby bending the portion ofthe strip which is adjacent to it and this movement is closely7 followedby the movement of the member v111 which results in folding that portionof the strip adjacent to the member le; above the other end of thestrip.

Following this action the header 23 descends and this hea-der is of suchform that it presses the ends of the strip firmly about the mandrel 11so that the strip conforms to the mandrel.

As explained in the application before mentioned, automatic means areprovided for expelling the chaplet from the mandrel after it has beencompletely formed.

lt Will be apparent that as stated earlier in the speciication, it isnot necessary to the successful operation of the method which has beendescribed that the same shall be effected by a machine but the processmay be operated by bending) the metal strip about a mandrel or suitable.form which is provided with a central slot such as the mandrel 11 of themachine which has been described.

Having described my invention, claim:

1. The method of making chaplets which comprises bending a strip ofmetal with an approximate right angle bend at one end thereof, thenbending the metal strip into a substantially U-shape, then bending; theend of the strip having the angle bend therein into a position such-thatthe bent end is in substantial contact with the base of the strip, thenfolding the other end of the strip of metal against the end of the stripwhich has been previously folded.

2. The method of forming chaplets which comprises bending 'the end of astrip with a short approximate right-angle bend, then bending the stripto assume a substantially Ll-form, then simultaneously beudingj the endsof the strip toward each other with the end having the angle bendbeneath the other end of the strip of metal and continuing the folduntil the substantiallyT rightangle bend at the end of the strip is incontact with the base of the chapiet and the other end of the strip isin contact with the end of the strip Which has the right-angle bendtherein.

The method of forminga chaplet which comprises bending; one end of astrip of metal With a short approximate right-angle bend, then bendingthe strip about a mandrel which has a slot therein so that the strip issubstantially U-shaped, then bending the end of the strip With the anglebend about the mandrel so that the saidbend enters the slot in themandrel, then bending the other end of the strip so that it lies abovethe irstmentioned end of the strip and then forming the said ends of thestrip into conformity with the mandrel With the bent end of thesignature.

' SAMUEL 1l. GIBSON.

